package com.jjj.springmvc.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

public class CORSFilter implements Filter{

	@Override
	public void destroy() {	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)throws IOException, ServletException {
		System.out.println("Filter on …………………………………………");
		HttpServletResponse respone = (HttpServletResponse)res;
		respone.setHeader("Access-Control-Allow-Origin", "*");
		respone.setHeader("Access-Control-Allow-Method", "POST,GET,PUT,OPTIONS,DELETE");
		respone.setHeader("Access-Control-Max-Age", "3600");
		respone.setHeader("Access-Control-Allow-Headers", "x-requested-with");
		chain.doFilter(req, res);
		System.out.println("Filter over …………………………………………");
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException { }

}
